<header>Restrictions on client hostnames/addresses</header>

<center><tt>smtpd_client_restrictions</tt></center>
<hr>

This parameter specifies optional restrictions on SMTP client host names and
addresses.

<p>

The default is to allow connections from any host.  The following
restrictions are available:

<include smtpd_restrictions>

Restrictions are applied in the order as specified; the first
restriction that matches wins.

<p>

Specify a list of restrictions, separated by commas and/or whitespace.
Continue long lines by starting the next line with whitespace.

<p>

Sensible examples:
<ul>
<li><tt>permit_mynetworks, reject_unknown_client</tt>
<li><tt>reject_maps_rbl, reject_unknown_client</tt>
</ul>

<hr>
